MPA Electrical NM4038 Brake Master Cylinder

Brake Master Cylinder for Ford and Lincoln

Restore hydraulic braking performance with this new brake master cylinder from MPA Electrical. Part number NM4038 is a standard replacement unit with a 1.25-inch bore, aluminum body, plastic reservoir, and included cap for service-ready installation on the listed Ford and Lincoln applications.

Compatible With 2000-2002 Ford Expedition, 2000-2002 Ford F-150, 2002 Lincoln Blackwood, and 2000-2002 Lincoln Navigator with front disc brakes. This NM4038 master cylinder is built for vehicles using DOT 3 brake fluid and is supplied as a new replacement component.

Key Features

• Standard replacement brake master cylinder for hydraulic brake repair
• 1.25-inch bore diameter for the listed applications
• Aluminum master cylinder body with plastic reservoir
• Master cylinder cap included
• Uses DOT 3 brake fluid
• Two mounting holes with 0.415-inch mounting hole diameter
• No brake booster, push rod, sensor, gasket, seal, or mounting hardware included

Product Details

MPA Electrical NM4038 is engineered to restore braking performance on Ford Expedition, Ford F-150, Lincoln Blackwood, and Lincoln Navigator models equipped with front disc brakes. The master cylinder is tested against OE specifications using controlled inspection processes and sample-based validation to support consistent hydraulic output and pedal response. The aluminum construction and integrated reservoir support a direct replacement approach for brake system service.

This part cross-references Ford and Lincoln OE numbers such as YL1Z2140AA and YL1Z2140AC for the same application.

Common Problems This Part Can Address

• Soft or inconsistent brake pedal feel
• External brake fluid leakage at the master cylinder
• Loss of hydraulic pressure in the brake system
• Brake warning concerns tied to master cylinder wear
• Poor braking response on front disc brake vehicles

Installation Notes

Bench bleed the master cylinder before installation and use clean DOT 3 brake fluid only. Verify the mounting pattern, bore size, and reservoir orientation against the original unit before installation. Transfer any required vehicle-specific components from the original brake system if needed, since mounting hardware, push rod, and brake booster are not included.

Quality Assurance

MPA Electrical tests each brake master cylinder against OE specifications using proprietary processes and strict protocols to help ensure proper fit and braking performance out of the box.